The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2020
Filed:
Apr. 16, 2019
Applicant:
SK Innovation Co., Ltd., Seoul, KR;
Inventors:
Young Bo Choi, Seoul, KR;
Sang Il Lee, Daejeon, KR;
Sung Real Son, Daejeon, KR;
In Hyoup Song, Daejeon, KR;
Assignee:
SK Innovation Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 493/04 (2006.01); C07H 1/00 (2006.01);
U.S. Cl.
CPC ...
C07D 493/04 (2013.01); C07H 1/00 (2013.01);
Abstract
The present invention relates to a method of producing anhydrosugar alcohol by dehydrating sugar alcohol at high pressure in the presence of a catalyst which is less acidic than a conventional sulfuric acid catalyst and which can suppress side reactions at high temperature. According to the present invention, anhydrosugar alcohol can be produced in a yield similar to that in a vacuum reaction.